3D Cells Not appearing in Update 7

I have created 3D cells also upgraded old 3D cells and I have the same result

The upgraded members ( PS members ) are disappearing when the 3D cell is placed in a 3D environment. as shown in the picture below.

I can put a fence around the cells in question and in the print preview will show all the members

When I drop the cell, all of the members appear. As shown in the picture below.

It seems to be only effecting the PS members, all legacy members are fine. Has anyone run into the same problem and found the solution ? 

Some of our 3D cells are all upgraded members, so when they are placed it is very hard finding something for cant see. Just like dark matter.